67.71% is the change from 319 to 535
Calculation steps:
[( 535 - 319 ) ÷ 319] x 100 = 67.71%
Formula
Percentage change = [(535 - 319) / 319] x 100
Subtract the new number by the original number
535 - 319 = 216
216 ÷ 319 = 0.677115987460815
0.677115987460815 x 100 = 67.71%